Computer Problems? est. 2008

DIY Computer Troubleshooting: Common PC Issues and How to Fix Them

Dec 22, 2025By Michael Holden
Michael Holden

Is your computer acting up? Before you rush to a repair shop, there are several DIY troubleshooting steps you can take to resolve common PC issues. Not only can these tips save you time, but they can also save you money.

PC Won't Turn On

One of the most frustrating issues is when your computer doesn't power up. This problem could be due to a variety of reasons, but here are some basic steps to troubleshoot:

  • Check the power source and ensure that the outlet is working.
  • Inspect the power cable for any damages and make sure it's securely connected to the PC.
  • If you’re using a laptop, remove the battery and try powering it with the AC adapter.
computer won't turn on

Slow Performance

Experiencing sluggish performance can be a headache. Here’s how to speed things up:

Check for Malware

Malware can significantly slow down your system. Run a full system scan using your antivirus software to detect and remove any threats.

Manage Startup Programs

Too many startup programs can slow your boot time. Disable unnecessary startup applications via the Task Manager.

slow computer

Internet Connectivity Issues

Having trouble connecting to the internet? There are a few steps you can take to diagnose and fix the problem:

  • Restart your modem and router by unplugging them for at least 10 seconds before plugging them back in.
  • Ensure your Wi-Fi is turned on if you're using a laptop.
  • Forget the network and reconnect to it by entering the correct password.
internet connectivity

Frequent Crashes

If your computer is crashing frequently, it might be due to software or hardware issues. Here's what you can try:

Update Drivers

Outdated or corrupt drivers can cause crashes. Use Device Manager to check for updates and install the latest drivers.

Check for Overheating

Overheating can lead to system instability. Ensure your computer is in a well-ventilated area and clean any dust from fans and vents.

computer overheating

These tips should help you troubleshoot some of the most common PC problems. Remember, before opening up your computer or making any significant changes, ensure you have a backup of your important files. If these solutions don't resolve your issue, it might be time to consult a professional.